<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>内部样式表</title>
    <style type="text/css">
        h1 {color: red}
        p {color: blue}
    </style>
</head>
<body>
<h1>一级标题</h1>
<p>段落</p>
</body>
</html>